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Our goal is to provide academics, governments, international organisations and NGOs with information for research and evidence-based evaluation of public policies.

We do not offer information or counselling to individuals interested in acquiring the citizenship of a particular country and we do not encourage experts in our network to answer such requests.

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Modes of loss

Modes of loss database

The database on modes of loss provides information on how citizenship is lost in all countries covered by EUDO CITIZENSHIP.

The database allows two types of searches that cannot be combined:

  • Country: search by country and view all regulations in one country.
  • Mode: search by mode and view regulations across countries.

Seach by Country:
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Modes of loss of citizenship: overview

ID

Grounds for loss

ID

Grounds for loss

L 01

Renunciation of citizenship

L 09

False information or fraud in the procedure of acquisition of citizenship

L 02

Permanent residence abroad

L 10

Retention of a foreign citizenship  by persons acquiring citizenship of C1 by declaration or naturalisation

L 03

Service in a foreign army

L 11

Loss of citizenship by parent(s)

L 04

Employment in non-military public service of a foreign country

L 12

Loss of citizenship by spouse or registered partner

L 05

Acquisition of a foreign citizenship

L 13

Annulment of maternity / paternity or of adoption of a citizen of C1

L 06

Retention of a foreign citizenship by persons who have acquired citizenship of C1 by birth

L 14

Establishment of foreign citizenship of a person who acquired citizenship of C1 as a foundling or as a presumptively stateless person

L 07

Disloyalty, treason, violation of "duties as a national" or similar grounds

L 15

Loss for other reasons

L 08

Other (criminal) offences